Process of forming jaws for game traps



H. G. GREENE.

PROCESS OF FORMING JAWS FOR GAME'TRAPS.

APPLI'CATION FILED APR. 12. 1920.

1,413,722, Patented Apr. 25, 1922.

2 SHEETS-SHEET I.

H. e. GREENE, PROCESS OF FORMING JAWS FOR GAME TRA PS.

APPLICATION FILED APR. 12, I920.

Patented Apr. 25, 1922.

2 SHEETS-SHEET 2- 12, 11 13 y v 7 I r 4 a r I ll I INVENTOR.

' t BY. 7

ears

" cries.

nonnnrnon e. GREENE, or. oNEInA, EW YoEK, AssIeNo ror InMPH TRAP 00.,

met, on ONEIDA, NEW ORK, A CORPORATION on NEW YORK.

PROCESS 01F FORMING JA'WS FOR GAME TRAPS.

Specification of Letters Patent. Patented Apr. 25, 1922.

Application filed April 12, 1920. Serial No. 373,054.

To all whom it may concern:

Be it known that 'L'Honnnmcn G. GREENE, residing at Oneida, in thecounty of Madison and State of New York, have invented'oertain new anduseful Improvements in a Process of Forming Jaws for Game Traps, ofwhich the following is a specification.

This invention relates to a new and improved process of forming blanksof sheet metal, and in the present embodiment of my invention I proposeto illustrate and describe it as adapted to form blanks out of whichjaws of game traps are constructed.

One of the objects of the invention is to provide a process of formingblanks out of sheet metal, such as steel, which not only minimizes awaste of raw material, but which is carriedon by a single continuousoperation, and wherein the tools required for carrying on this operationare so simple that a minimum amount of repairs is required to maintainthe tools in an operative condition.

Another object of the invention is to provide a process of formingblanks for jaws of game traps wherein the right and left hand jaws for agame trap are separately produced and separately discharged, therebymaking it unnecessary to assort the form blanks preliminary to furtheroperations.

, Other objects and aims of the invention more or less specific thanthose referred to above, will be in part obvious and in part pointed outin the course of the following description of the steps and the relationof each step to one Or more of the others thereof employed in carryinout my-process, and the scope of protect on contemplated will beindicated in the appended claims.

In the accompanying drawings, wherein I have illustrated preferred formsof embodiment of my invention:

Figure 1 illustrates the male die employed in carrying out my improvedprocess.

Figure 2 illustrates the female die employed in carrying out saidprocess;

Figure 3 is a bottom plan View of Figure 1. Figure 4c is a bottom planview of Figure 2. Figure 5 illustrates a. strip of metal, suitable forutilization in carrying out my improved process, and showlng one stageof the process.

Figure 6 a View of the same blank at a further stage in the process.

Figure 7 is a similar view of the blank in still a. further. stageinthe. process.

Figure 8 shows the blank preliminary to completing the final step of theprocess; and

Figure 9 is a plan view showing one of the completed blanks ready to beformed into a trap jaw. I

Referring now to the drawings, wherein similar reference charactersrefer to similar parts-throughout the several views thereof, thereference numeral 1 denotes a plate or base member upon which is mountedthe dies or punching members 2, 3 and 4.

5 indicates another plate or basemember, in which is formed apertures 2,3 and a. These apertures constitute the female part of the die employedin carrying out my inrproved process. 1 The punch 3 co-operates with theaperture 3", the punch 4L- cooperates with the aperture 4C; 1 j

It will'be understood that in practicethese dies are mounted oneabo-ve'the other on the respective jaws of a press, so that when thepress jaws are reciprocated, the punches will be caused to make andenter the correspondingly formed recesses or apertures located directlytherebeneath. I I 1 In carrying out my process a stripof material,preferably steel, is employed,'said strip being cut to the eXact' widthrequired for blanking out a pair of trap jaw blanks, that isto say, theblank is of such width as will permit the same to be splitlongitudinally to provide the aforesaichblanks.

' 2 cutting fromthe blank the small triangular part 7, and the punch 3cutting therefrom the small substantially" square portion 8.

The part 7 cut"from the blank is waste material, and the part S-ismerely asufficient port-ion cut from the blank to trimthe starting endofthe material with a minimum loss.

Nl1en' this operation has been accomplished by a single stroke of thepress, the strip is then moved forwardly to its second station. In thisoperatlon, that is to say, upon the next operation of the press jaws,the end p This strip, 'whlch 1's. designated as '6, is fed endwlse ofthe punch lmerely splits longitudinally the surplus overhanging stockshown at 9 in the dotted lines of Figure 6, the punches 2 and 3operating to cut from the blank the waste portions indicated in Figure 6at 10 and 11.

It will be noted that at this stage the parts 12 and 13 of the strip areconnected at 14- with sufficient material to hold said parts together sothat the strip can be moved onwardly or forwardly to the third station.

l/Vhen the strip 6 is in the third station, the die or punch 4: shearsand separates two blanks, as shown in Figure 7, said blanks beingdesignated 15 and 16, the blank 15 being shown in dotted lines, beinforced entirelythrough the female part of the die, and the remainingwaste material indicated at 17, being separated from the end of theblank.

It will, however, be noted that the jaw blank designated at 16 is stillattached to the adjacent material as at 1 The strip or bar is then movedinto the fourth station, in which station the cutting edge 18 of the die.or punch shears the small remaining connection between the blank 16 andthe connecting stock, discharging the jaw blank 16 in a separate chute.Thereafter the strip or bar 6 is moved forwardly intermittently, therebeing one forward or onward movement of the stock for each operation ofthe press, whereupon at each operation of the press two jaws are formed,the jaws 15 being discharged in the third station, and the jaws 16 beingdischarged in the fourth station; and further, at each operation of thepress the waste parts indicated at 10 and 11 are cut from the stock. Thewaste portions 9 and 17 are cut from the blank only at the initialoperations, when the free end of the stock isbeing inserted into thepress.

It will accordingly be seen that I have provided a process well adaptedto attain, among others, all the ends and objects of the invention abovepointed out, in a very simple yet efficient manner. In carrying out theprocess it will be noted that save for the initial operation, when thewaste is to be cut from the end of the stock, the only waste or loss ofmaterial sustained is the two sub stantially triangular parts 10 and 11which are cut from the stock in order to properly shape the trap jawblanks.

It will also be noted that the operation is substantially acontinuousone, the strip or bar being merely inserted between the jawsof the press and moved intermittently therein, whereby as above stated,two complete jaws are formed at each operation of the press.

As many changes could be made in this construction without departingfrom the scope of the following claims, it is intended that all mattercontained in the above description or shown in. the accompanying drawingshall be interpreted as illustrative only and not in a limiting sense.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. The herein described process for forming the jaws of game traps,consisting in providing a strip of metal having the width of two blanks,preparing the end of the said strip by cutting out at one operation onecorner portion and an edge portion on the opposite side near the saidend leaving an unsevered portion at the end, then cutting off at oneoperation a part of the said unsevered end portion and cutting outportions on opposite sides of the strip at a distance from the said end,then at one operation splitting the strip longitudinally and cutting offthe remainder of the unsevered end portion and cutting out portions onopposite'sides of the strip at a distance from the cut-out side portionsfirst mentioned the said operation detaching one formed blank, and thenat one operation splitting the end portion of the strip longitudinallyto the said out out edge portions mentioned second and detaching thesecond and third blanks and forming cut out portions on opposite sidesand at a distance from the severed end of the strip.

2. The herein described process of forming blanks for the jaws of gametraps, consisting in providing a strip of metal of a width equal to thewidth of two blanks, and as a first step cutting away at one operation aportion of one corner of the end of the strip and a portion of theopposite edge of the strip near the said end leaving a portion of theend of the strip unsevered, then ad'- vancing the strip and as a secondstep at one operation cutting off a part of the said unsevered portionat the end of the strip and cutting out portions adjacent to each otheron opposite sides of the strip and at a distance from the said end,again advancing the strip and as a third step at one operation cuttingoff the remainder of the said unsevered end portion ofthe strip andshearing longitudinally the portion of the strip eX- tending between thesaid end and said ad j acent cutout edge portions thereby detaching oneformed blank and leaving the second formed blank unsevered andkalsocutting out adjacent portions on oppositeedges .of the strip as beforeat a distance from the said adjacentcut out edge portions firstmentioned, and agam advancing the strip and as a fourth step cutting offat one operation the said unsevered blank and shearing longitudinallythe portion of the strip extending to the said cutout edge portionsmentioned second thereby detaching a third formed blank. 1 i

3. In a process for forming blanks for the jaws of game traps, a diecomprising male and female members, the male member having near one endtWin'right-angled triangular projections spaced apart and extending indifferent directions and having their bases aligned transversely of thesaid male member, the said member having also near the other end a thirdprojection having the form of an elongated right-angled triangle withits base or shortest side parallel with the corresponding sides of thesaid twin projections, and the sald female member having openingscorresponding in contour to the said cutting projections of the malememher.

4. The herein described process of producing blanks for the jaws of gametraps, which consists in providing a strip of metal of a width equal tothe width of two blanks, cutting away portions of the edges of givenlengths of said blank, shearing each of said blanks longitudinallythereof to separate a blank from said strip, and then shearing theremaining blank from said strip.

5. The herein described process of producingblanks for the jaws of'gametraps, which consists in providing a strip of metal of a width equal tothe width of two blanks,

cutting away portions of the sides 'ofone length of said strip to formthe end of one blank, simultaneously cutting away the portion of theopposite edge of the next preceding length of said strip to form the endof another blank, shearing the first mentioned length of said blanklongitudinally to sever a jaw blank therefrom, and severing the nextsucceeding length from said first men tioned length to form anotherblank.

In testimony whereof, I 'afiix my signature, in the presence of twowitnesses. HOLDRIDGE Gr. GREENE. Witnesses:

CHARLES H. WILsON, F. E. ADAMS.

